JP6926181B2 - Motorcycle with swivel fuel tank - Google Patents

Description

The present invention is a motorcycle, comprising an internal combustion engine, a frame, a fuel tank for storing fuel to be consumed by the internal combustion engine, and a container coupled to the internal combustion engine and the fuel tank. For motorcycles, which are formed to store fuel evaporated from the fuel tank, the container is at least partially obscured by the fuel tank at the point of use.

Motorcycles equipped with an internal combustion engine have a problem that the fuel stored in the fuel tank evaporates. In this case, it is necessary to derive the evaporated fuel in order to avoid damage to the fuel tank.

Naturally, for environmental protection reasons, hydrocarbon emissions into the environment should be kept as low as possible. Therefore, in many countries, devices are legally required to minimize the emission of evaporated fuel into the environment (evaporative emission control system). This device is generally a device that can store the evaporated fuel that leaks from the fuel tank and then supply it back to the engine. For this reason, these devices are often formed in the form of a container in which an activated carbon filter capable of collecting and interim storing evaporated fuel is arranged.

Based on the many devices and equipment used in modern motorcycles, the space provided to containers is generally designed to be marginal, and motorcycles originally provide much less space than passenger cars. Moreover, based on thermal requirements, it can be said that only certain areas are convenient for container placement. That is, in the case of an activated carbon filter, maximum adsorption is obtained under low temperature conditions. For this reason, it is desirable that the container is not exposed to, for example, direct sunlight. While the motorcycle is in operation, the fuel intermediately stored by the activated carbon filter is supplied to the engine, so it is convenient that the emission rate of the activated carbon filter is as high as possible. The release of fuel from the activated carbon filter is also facilitated by high temperatures. Therefore, while driving a motorcycle, it is generally desirable that a relatively high temperature predominates in the area of the activated carbon filter, and therefore it is convenient to place it near the internal combustion engine that generates heat. Not surprisingly, it is not possible to place it in close proximity to the engine to avoid thermal damage. To meet these inherently contradictory requirements, European Patent No. 2258938 envisages that the container be located below the fuel tank as well as above the engine. Again, in the case of motorcycles, it is rational to place the container in front of the fuel tank and behind the headlights, as also in European Patent No. 2279936.

To avoid long supply conduits, devices for restraining the discharge of evaporated fuel are located near the fuel tank, usually in the form of containers. In this case, it is difficult to approach the vehicle parts located under the vehicle parts for maintenance, and there is a problem that the container must be removed frequently. Otherwise, servicing these vehicle parts is difficult, where maintenance technicians must treat the conduits connected to the vessel with particular care to avoid damage.

An object of the present invention is to avoid the above drawbacks and to provide a device for reducing evaporative emissions, with a container arranged in a position favorable to the effect of the container for storing the evaporated fuel. The purpose is to provide a motorcycle that facilitates maintenance of equipment or vehicle parts located under the fuel tank.

This problem is solved by a motorcycle having the characteristics according to claim 1.

The present invention relates to a motorcycle equipped with an internal combustion engine. In the case of the present invention, the internal combustion engine means an engine such as a gasoline engine or a diesel engine in which the fuel is stored in a fuel tank in the form of a liquid. Motorcycle (Motorrad) generally means a two-wheeled vehicle (einspurige Kraftfahrzeuge) including a motorbike (Motorfahrraeder).

In the case of a motorcycle, another vehicle component such as an engine is arranged under the fuel tank. The fuel tank is rotatably supported with respect to the frame, and the turning is performed between the first position, the so-called use position, and the second position, the so-called maintenance position, when the motorcycle is ready for departure. Equipment and vehicle components located under the tank can be approached particularly well for maintenance. This is because the fuel tank can be erected upward when it is turned to the maintenance position.

In addition, on motorcycles where the fuel tank is usually located on the top of the vehicle, the container is protected from direct sunlight by being at least partially covered by the fuel tank in the position of use, so the motorcycle stops. When in a state, relatively low temperature conditions suitable for adsorption of evaporated fuel can be realized. In addition, the container is at least partially covered by the fuel tank at the point of use, which protects it from mechanical damage. Internal combustion engines are also often located below the fuel tank. The container is not only protected from direct sunlight, but also located in the vicinity of the engine, based on the arrangement that is at least partially obscured by the fuel tank in the position of use, so that the motorcycle During operation, the desired relatively high temperature for the container can be achieved.

In this case, the container may be arranged so that the fuel tank can be satisfactorily approached after being swiveled to the maintenance position. This is the case, for example, when the container is located just below the fuel tank or swiveled with the fuel tank.

Another advantageous configuration of the present invention is set forth in each dependent claim.

In a preferred embodiment, the container is attached to the underside of the fuel tank and, additionally or optionally, to the anterior surface of the fuel tank. In this case, the lower surface faces the ground, and the front surface relates to a general traveling direction. That is, in the case of a motorcycle, the front of the fuel tank faces the steering. When mounted on the bottom surface, the supply conduit leading from the fuel tank to the container may be formed particularly short. In addition, the container is mounted on the underside of the fuel tank to provide particularly good protection from direct sunlight. In addition, mounting on the underside of the fuel tank provides a particularly high degree of protection against mechanical damage. If the internal combustion engine is located under the fuel tank, the vessel is located closer to the engine by being mounted on the underside and / or front of the fuel tank, so while driving the motorcycle. In addition, the relatively high temperatures desirable for the container can be achieved without the risk of thermal damage. This is because it is fixed to the fuel tank, so that there is a certain distance from the engine.

In a motorcycle, the fuel tank is provided so that it can swivel with respect to the frame, in this case based on the fact that the fuel tank is swivel between the maintenance position and the use position where the motorcycle is ready for departure. It is possible to turn the fuel tank to the maintenance position, which will achieve an easy approach to the vehicle parts located beneath it. A device formed as a container to prevent the discharge of evaporating fuel from the fuel tank is attached to the fuel tank and swiveled with the fuel tank, so that the approach to the vehicle parts placed under it is particularly important. It's easier and you don't have to remove the container separately. A device for storing evaporated fuel, such as an activated carbon filter, which is arranged in the container itself and inside the container itself, is a well-known device in the prior art. For example, the container may be a Sentec type or a LydsTech type equipped with an activated carbon filter for storing the discharged fuel gas, respectively.

Attaching the container to the fuel tank, and optionally also the supply conduit to the container and the outlet tube from the container, greatly simplifies the assembly of the motorcycle according to the invention, in which case the clip and holder provided on the frame. It is possible to reduce the number of requirements and to provide cleaner conduit guidance for supply and outlet pipes. Being swivel together allows the container with the supply conduit and outlet pipe to swivel with the fuel tank, allowing a particularly good approach to vehicle components located beneath it. The container itself can also be approached well after the fuel tank has swiveled.

Another problem is the danger of liquid fuel flowing into the container. This is because otherwise the activated carbon filter placed in the container could be damaged or even destroyed. For example, in order to prevent the outflow of liquid fuel when a motorcycle falls in an accident, it is surely provided with a so-called rollover valve, which is often located in the supply conduit leading from the fuel tank to the container. In part, the container is automatically protected from the ingress of liquid fuel. However, it may be desirable to place this rollover valve in the area of the outlet pipe from the container rather than in the area of the supply conduit leading to the container. In addition, the functional form of the rollover valve also depends, in part, on the direction in which the fuel tank is tilted. For fuel tanks that are swiveled upwards, the functionality of the rollover valve may be limited.

Further, the container is attached to a predetermined position of the fuel tank, preferably the lower surface of the fuel tank and / or the front surface of the fuel tank with respect to the supply conduit connecting the container to the fuel tank, and the fuel tank is in the maintenance position. It may be assumed that the inflow of liquid fuel into the container is prevented when the fuel is swiveled. This is especially advantageous if the rollover valve is not provided.

For this reason, it is assumed that the swivel support of the fuel tank is made in the first half of the fuel tank, while the container is attached to the fuel tank in the area of the other half of the fuel tank. The fuel tank is swiveled from the used position to the maintenance position, and the other half, which is located on the opposite side of the first half, and thus the container attached to this half, also swivels upward. Will be done. On the other hand, when the container is installed at the position of the fuel tank in which the container is moved completely or very little during the rotation of the fuel tank, the liquid fuel arranged in the fuel tank enters the supply conduit. There is a risk of damage to the inflow, then into the vessel, and thus the equipment for storing the evaporated fuel, especially the activated charcoal filter, located in the vessel. By attaching to the half opposite the first half of the fuel tank, the container will be located higher than the supply conduit in the fuel tank, at this position despite swirling motion. Therefore, there is no risk of liquid fuel flowing into the container. That is, the fuel tank can be swiveled to the maintenance position without risking the liquid fuel flowing into the container. Therefore, damage can be prevented.

In this case, it is preferably assumed that the half portion relates to the longitudinal direction of the fuel tank corresponding to the longitudinal direction of the motorcycle in the motorcycle. In this case, the swivel bearing is made in the rear half in the traveling direction and the container is attached in the front half in the traveling direction or vice versa. In this case, the fuel tank is swiveled around an axis arranged perpendicular to the vehicle longitudinal direction, in which case the axis is lateral. However, it is also possible that the half of the fuel tank relates to the lateral direction arranged perpendicular to the longitudinal direction. In this case, the swivel axis is arranged in the longitudinal direction.

Better yet, the swivel bearing of the fuel tank is made in the first end region of the fuel tank and the mounting of the container is in the second end region located opposite the first end region. When done in, it is protected from the influx of liquid fuel. By attaching to the second end region, which is located opposite the first end region, the vessel is positioned in the fuel tank maintenance position significantly higher than the supply conduit in the fuel tank. Therefore, the inflow of the liquid fuel into the container during the turning motion is better prevented.

In this case, it is preferably assumed that the front end region of the fuel tank relates to 1/3 of the front side, preferably 1/4 of the front side in the longitudinal direction of the fuel tank. In this case, the swivel bearings are made in the rear 1/3, preferably 1/4 in the traveling direction, and the container is attached in the front 1/3, preferably 1/4 in the traveling direction. It is done or vice versa. In this case, the fuel tank is swiveled around an axis arranged perpendicular to the vehicle longitudinal direction, in which case the axis is lateral. However, it is also possible that the first and second end regions of the fuel tank relate to the lateral orientation arranged perpendicular to the longitudinal direction. In this case, the swivel axis is arranged in the longitudinal direction.

A swivel bearing is provided by the specially formed components of the fuel tank and the corresponding motorcycle components, without the fuel tank being tightly coupled to the motorcycle in the area of the bearing. In a preferred embodiment of the invention, it is assumed that the fuel tank is rotatably supported by the motorcycle, preferably via a removable pivot joint, despite the fact that it may be possible. ing. The pivot joint is preferably formed as a hinge. Preferably, the pivot joints are in two or more pivot joints, eg, a pivot joint provided in the left edge region of the fuel tank in the travel direction and a right edge region of the fuel tank in the travel direction. It is also envisioned to consist of a pivoted joint provided. That is, for example, two hinges on the left side and the right side in the traveling direction may be provided in the fuel tank. All swivel bearings, especially pivot joints, are located at one end of the fuel tank, whereas in the opposite end region, the container is expected to be mounted. good.

Preferably, it is envisioned that the swivel bearings of the fuel tank are formed such that the bearings are swivel around an axis arranged perpendicular to the longitudinal direction of the motorcycle. In this case, the axes are arranged in the lateral direction of the vehicle. In the upright position of the vehicle, the lateral direction is oriented horizontally as well as the longitudinal direction.

Motorcycles typically have a fuel tank that has dimensions in the longitudinal direction of the vehicle that are greater than those in the direction perpendicular to this longitudinal direction.

Therefore, if the fuel tank is shuntable around an axis that is perpendicular to the longitudinal direction of the vehicle, the fuel tank is slewable over a larger range, i.e. the maintenance position and the motorcycle is ready for departure. The angle between the position and the position of use is larger. The maximum turning angle depends in particular on the geometry of the fuel tank and may be, for example, in the range of 15 ° to 100 °. The larger this angle, the better the approach to the vehicle parts located below it.

The container is connected to the fuel tank via a supply conduit. The evaporated fuel is guided to the container through this supply conduit. Further, a lead-out pipe for supplying the evaporated fuel to the engine may be provided. This fuel is generally a gaseous fuel that is re-emitted from the storage container inside the container, for example in the form of an activated carbon filter. In this case, the supply to the internal combustion engine is performed in a form known in the prior art, in which case the gaseous fuel is first supplied into the throttle valve or directly into the intake conduit, from which together with the remaining fuel-air mixture. It is supplied to the internal combustion engine. In addition, the container may be connected to the exhaust conduit. The exhaust conduit is for discharging the evaporated fuel re-released from the storage device in the container into the environment when the motorcycle is stopped and therefore the re-released fuel gas cannot be burned by the engine. Used for. Therefore, this exhaust conduit can prevent damage to the container.

The container itself is preferably made of plastic, such as polyamide. However, it would also be possible to manufacture the container from metal. The supply conduit, outlet pipe and exhaust conduit are preferably flexible, gasoline resistant hoses made of, for example, rubber such as EPDM. Based on the flexibility of the hose, the hose can be placed flexibly, which avoids damage to the supply, outlet and exhaust conduits when the fuel tank is swiveled. In particular, it is not necessary to remove these conduits before turning.

It may be envisioned that a supply conduit, an additional or alternative outlet pipe, and an additional or alternative exhaust conduit are attached to the fuel tank. This is because when the fuel tank is swiveled from the use position to the maintenance position, not only the container but also the conduit connected to the container is swiveled together at least partially, so that it is a vehicle part located below it. , Has the advantage of being particularly easy to approach. Devices known in the art, such as metal clips and / or elastic fixing means, are considered for attaching the conduit. In particular, it may be assumed that the entire emission system is attached to the fuel tank. In this case, the emission system means a system in which the fuel evaporated in the fuel tank is temporarily stored and re-released. The emission system includes a container and a storage device in the form of an activated charcoal filter, for example, a supply conduit leading from the fuel tank to the vessel, a lead-out pipe from the vessel to the engine, an exhaust conduit in some cases, and an air bleeder. It belongs to a valve (purge valve), as well as one or more rollover valves to avoid the outflow of liquid fuel.

It may be assumed that the emission system also has a control device that supplies the re-emitted fuel gas to the engine depending on the re-emission and / or engine condition. This controller may also be attached to the fuel tank. However, it may also be envisioned that the controls be placed separately at different locations on the motorcycle. Finally, the controller may be a component of the air bleed valve.

The swivel bearing of the fuel tank may be provided on the side of the fuel tank far from the steering. For motorcycles, the fuel tank is always located behind the steering when viewed from the side. When the fuel tank is supported so as to be able to turn on the side far from the steering of the fuel tank, that is, on the rear side in the traveling direction, the side of the fuel tank facing the steering is turned upward to the maintenance position when turning. NS. If the container is attached to the steering half or end area of the fuel tank, the container will be swiveled sufficiently upward to prevent the inflow of liquid fuel. Further, in this arrangement type, the container can be placed near the engine or near the cooler, so that the temperature around the container, which is warm but not extremely high, predominates during engine operation. After the motorcycle is stopped, the cooler can cool the container additionally. For this reason, it may be assumed that the container is located above the engine and below the cooler at the position where the fuel tank is used.

Further, in the case of a motorcycle, a saddle is often connected to the fuel tank, and the fuel tank may be supported so as to be rotatable in the area of the saddle. In the case of pivot joints for swivel bearings, the pivot joint may be covered and thus protected by a saddle.

The bearing of the fuel tank may be done in the frame. In the case of a pivot joint, a portion of the pivot joint may or may be attached to the fuel tank for this purpose, while the corresponding corresponding member is formed or attached to the frame. ing. In this case, the frame may have lateral members arranged on the left side and the right side of the frame when viewed in the traveling direction. In this case, the container may be arranged between each side member. The components located inside each side member are particularly well protected from mechanical damage. Therefore, in this arrangement, this also applies to containers. Cover parts are often arranged on the side members. In this case, the container is particularly effectively protected from direct sunlight. In addition to the container, other components of the emission system, such as supply conduits, outlet pipes and / or exhaust conduits, air bleed valves (purge valves) and optionally rollover valves, shall be placed inside each side member. May be assumed.

In a particular embodiment, the frame is formed as a double tube frame, in which case each side member has an upper girder and a lower girder. In this case, the container may be substantially located between the upper and lower girders at the position where the fuel tank is used. The mechanical stability of the frame is particularly high inside the upper and lower girders, which provides a particularly good protective measure here. Again, certain components of the emission system, such as supply conduits, outlet pipes, exhaust conduits and / or air bleed valves (purge valves) and rollover valves, are located substantially between the upper and lower longitudinal pipes. It's okay. The frame itself may be formed as a lattice tube frame.

Preferably, the container is formed in a substantially cylindrical shape, which has been found to be advantageous in terms of its functional form. Further, it is envisioned that the container be attached to the fuel tank so that the longitudinal direction of the vessel is perpendicular to the longitudinal direction of the motorcycle, especially in the case of a container formed substantially cylindrically. May be good. Preferably, it is assumed that the longitudinal direction of the container is arranged in the lateral direction of the vehicle. Attachment of the container to the fuel tank is done, for example, via metal clips and / or elastic fixing means, but other fixing means are also possible.

Preferably, it is assumed that the container has an extension length of 20% to 90% of the extension length of the fuel tank in this direction in its longitudinal direction. This is especially true if the container is attached to the fuel tank. Particularly preferably, the range of 30% to 60% is assumed. Thus, if the longitudinal direction of the container, that is, the direction of the maximum extension length of the container, is arranged perpendicular to the orientation of the motorcycle, the container is 20% to 90% of the lateral extension length of the fuel tank. It has an extended length of%, preferably 30% to 60%. The overhanging fuel tank overhangs the container, which provides particularly good protection. In addition, in this extended length area, emission system components such as supply conduits, outlet pipes, exhaust conduits, air bleed valves (purge valves) and / or rollover valves should also be covered and protected by the fuel tank. Is also possible. However, an extremely small value for the extended length of the container is inconvenient because it can lead to an inadequate volume of the storage device.

It may be assumed that the container, at least in part, preferably in its entirety, is located above the lower end of the fuel tank at the position of use of the fuel tank. That is, the container is at least partially, preferably entirely, located above the virtual horizontal plane at the lower end of the fuel tank when viewed from the side of the motorcycle. In particular, for this reason, when the container is attached to the lower surface of the fuel tank, the lower surface of the fuel tank is tilted upward or has a bulge corresponding to the container.

It is envisioned that the vessel be attached to the fuel tank so that it is located behind a virtual vertical plane at the front end of the fuel tank when viewed from the side, at least in part, preferably overall. good.

Further details and advantages of the present invention will be described with reference to the following drawings.

1a to 1d are a perspective view, a plan view, a front view, and a rear view of the motorcycle according to the present invention. In the schematic side view of the motorcycle according to the present invention, the fuel tank is located at the position of use. In the schematic side view of the motorcycle according to the present invention, the fuel tank is located at the maintenance position. It is a detailed perspective view of the motorcycle by this invention. It is a schematic side view which shows the component part of the motorcycle by this invention. It is a schematic front view which shows the component part of the motorcycle by this invention. 6a and 6b are a side view showing the fuel tank to which the container is attached and a perspective view of the fuel tank as viewed from below. It is a figure which shows the inside of the fuel tank schematicly about the supply line leading to a container. It is a figure about the attachment of a container.

FIG. 1a shows a perspective view of the motorcycle 1 according to the present invention, in which the container 3 is attached to the lower surface 8 of the fuel tank 2. The fuel tank 2 is supported via a pivot joint 6 so as to be rotatable around an axis A arranged laterally of the motorcycle 1, that is, perpendicular to the longitudinal direction L of the motorcycle 1. 6 is covered by a saddle 14. Therefore, depending on the configuration of the pivot joint 6, it may be necessary to remove the saddle 14 in advance in order to rotate the fuel tank 2. The frame 7 of the motorcycle 1 is formed as a lattice tube frame, and in this case, the container 3 is arranged between the left side member 15 and the right side member 16, and the fuel tank 2 is used. Then, it is substantially located between the upper girders 18 and 20 and the lower girders 17 and 19 of the left side member 15 and the right side member 16 of the frame 7. Since the engine 12 is arranged under the fuel tank 2, the waste heat of the engine 12 raises the ambient temperature of the container 3, whereby the storage device arranged inside the container 3 is replenished with relatively high fuel gas. Will have a release rate. A cooler 24 (not shown in this drawing for the sake of visibility) is located in front of the engine 12 and coasts for a predetermined time even after the motorcycle 1 is stopped in order to cool the engine 12. .. At this position of the container 3, the container 3 is also cooled by the cooler 24, so that after the motorcycle 1 is stopped, a favorable condition is given to the high adsorption rate of the storage device arranged in the container 3.

FIG. 1b shows a plan view of the motorcycle 1 according to the present invention. The container 3 is attached to the lower surface 8 of the fuel tank 2 and is covered by the fuel tank 2. The container 3 is arranged so that its longitudinal direction l is arranged in the lateral direction of the motorcycle 1, that is, perpendicular to the longitudinal direction L of the motorcycle 1. The lateral extending length S of the fuel tank 2 in the lateral direction is larger than the extending length S in the longitudinal direction l of the container 3, which causes the fuel tank 2 to be covered according to the present invention. The fuel tank 2 is rotatably supported around the axis A, in which case the axis A is arranged laterally to the motorcycle 1, that is, perpendicular to the longitudinal direction L of the motorcycle 1.

FIG. 1c shows a front view of the motorcycle 1 according to the present invention. In the use position in the illustrated embodiment, the lower surface 8 of the fuel tank 2 is formed so that the front 1/2 is inclined upward, whereby the fuel tank 2 is also formed with the upward upper girders 18 and 20 (FIG. 2). In this case, the container 3 is arranged in the first end region 4 of the fuel tank 2, which corresponds to the front quarter, and by extension, in the upwardly inclined region of the lower surface 8. As can be seen from the previous view, since the container 3 is covered by a component located in front of the container 3, for example, a headlight or the like in this view, a certain degree of protective means is provided in this case as well. Has been done.

FIG. 1d shows a view of the motorcycle 1 according to the present invention as viewed from behind.

FIG. 2 shows a schematic side view of the motorcycle 1 according to the present invention, in which the fuel tank 2 is located at a position where the motorcycle 1 is ready for departure. In this case, this schematic does not correspond to an actual motorcycle. This is because some components are shown only completely or schematically. The container 3 is arranged on the lower surface 8 of the fuel tank 2 in the first end region 4 facing the steering 13. A pivot joint 6 is provided in the second end region 5 located on the opposite side of the first end region 4, and the fuel tank 2 is used around the axis A via the pivot joint 6. It is possible to turn from the position to the maintenance position. The pivot joint 6 is arranged at the rear end of the fuel tank 2 and is covered by the saddle 14 in the operating state of the motorcycle.

In the used position, the container 3 is protected by upper girders 18, 20 and lower girders 17, 19 arranged on the left side member 15 and the right side member 16 of the frame 7 (FIGS. 1a and 1b). reference). The cooler 24 (schematically shown) is located in front of the engine 12 when viewed in the traveling direction, and after the motorcycle 1 is stopped, the engine 12, the container 3, and the storage device arranged in the container 3 are connected. Cooling. The fuel re-released from the storage device during the operation of the motorcycle 1 is supplied to the engine via the outlet pipe 10. The fuel evaporated in the fuel tank 2 is supplied to the container 3 via the supply conduit 9 and stored in the container 3 by a storage device in the form of an activated carbon filter, for example.

FIG. 3a shows another schematic side view, in which the fuel tank 2 is swiveled to the maintenance position. The turning axis A is arranged in the lateral direction of the motorcycle 1, that is, perpendicular to the longitudinal direction L of the motorcycle 1. Similarly, the longitudinal direction l of the container 3 is oriented in the direction of the axis A. The container 3 is attached to the lower surface 8 of the fuel tank 2 and is swiveled upward together with the fuel tank 2. Since the supply conduit 9 and the outlet pipe 10 (see FIG. 6b) are formed as flexible hoses, they are not damaged even when swiveled and can be arranged flexibly. Components located beneath the fuel tank 2, especially the cylinder head, can be successfully approached at this position for maintenance.

FIG. 3b shows the details of the fuel tank 2 at the maintenance position in a schematic perspective view. It is recognized that the container 3 is attached to the fuel tank 2 in the front end region of the lower surface 8 of the fuel tank 2. In this region, the lower surface 8 is inclined upward. At the maintenance position, the vehicle parts located below the fuel tank 2 can be satisfactorily approached. Based on the arrangement of the container 3 in the front end region 4 and the swivel bearings in the rear end region 5, it is possible to prevent the liquid fuel from flowing into the container 3 during swiveling without the rollover valve.

FIG. 4 shows a schematic side view of the components of the motorcycle 1 according to the present invention, in which the fuel tank 2 is located at the position of use. The container 3 is attached to the lower surface 8 of the fuel tank 2 in the front end region 4 corresponding to the front 1/4 of the fuel tank 2, and is swiveled to the maintenance position together with the fuel tank 2. In this case, the swivel axis A is located in the second end region located on the opposite side. It is well recognized that the container 3, the supply conduit 9, the outlet pipe 10, and the air bleeding valve 25 are also surrounded by the upper girders 19 and 20 and the lower girders 17 and 18 at the position of use, and are well protected.

FIG. 5 shows a schematic view of the components of the motorcycle 1 as viewed from the front. Here, it is recognized that the container 3 is attached to the lower surface 8 of the fuel tank 2, and the container 3 is formed in a cylindrical shape. An elastic fixing means 22 is arranged around the container 3. The fixing means 22 is attached to the lower surface 8 of the tank 2 via another fixing means (not recognizable in this drawing), for example, a clip 21. The supply conduit 9 is formed as a flexible hose that opens from the fuel tank 2 to the container 3 via the air bleeding valve 25.

6a and 6b show a side view and a perspective view of the motorcycle 1 according to the present invention at the position of use. On the other hand, the pivot joint 6 arranged in the rear end portion and thus in the rear end region region 5 is recognized, and the fuel tank 2 is moved from the use position in which the motorcycle 1 is ready for departure to the maintenance position through the pivot joint 6. Can turn. In the illustrated embodiment, the pivot joint 6 has, on the one hand, a second flange 31 formed in the fuel tank 2 and a first flange 28 attached to the frame 7. Of course, these may be provided in reverse, or may be realized by using another means.

A fixing means 27 is provided at the front end portion, and the fixing means 27 can prevent the fuel tank 2 from being unintentionally turned to the maintenance position. The turning is possible only after the fixing means 27 is released. A fuel supply unit 30 including a fuel pump is arranged at the lower end of the fuel tank 2, and the fuel supply unit 30 is responsible for supplying fuel to the engine 12 via the fuel filter 34 and the fuel conduit 26. There is.

A substantially cylindrical container 3 is attached to the upwardly inclined front end region of the lower surface 8, in which case the longitudinal direction l of the container 3 is the lateral direction of the motorcycle 1, that is, the longitudinal direction L of the motorcycle 1. It is arranged perpendicular to. By attaching to the bottom surface 8, the container 3 is well protected from mechanical loads and is partially cylindrical to the bottom surface 8 of the fuel tank 2 where the fuel supply 30 with the fuel pump is located. The bulge 33 can form another protective means of the container 3 attached immediately in front of the bulge 33 formed on the lower surface 8 of the fuel tank 2 in this embodiment. The supply conduit 9 and / or the outlet pipe 10 may be attached to the fuel tank 2 via, for example, elastic fixing means. However, this is not shown in FIGS. 6a and 6b. As a result, the emission system can be attached to the fuel tank 2 in advance, so that the motorcycle 1 can be easily assembled. In this case, the container 3 is arranged entirely behind the virtual vertical plane E at the front end of the fuel tank 2 and above the virtual horizontal plane H at the lower end of the fuel tank 2 in the illustrated side view. , Attached to the fuel tank 2.

FIG. 6b shows a perspective view of the tank shown in FIG. 6a as viewed from below. Here, the extending length of the cylindrical container 3 attached to the lower surface 8 of the fuel tank 2 is the extending length of the fuel tank. It is about 40% of the lateral extension length S of 2, and it is recognized that it is obscured by the fuel tank 2. Based on this size, the container 3, the supply conduit 9, the outlet pipe 10, and the air bleeding valve 25 can be arranged between the left side member 15 and the right side member 16 of the frame 7. Optimal protective measures against mechanical damage will be formed. Based on the lower surface 8 facing up in the front 1/2 of the fuel tank 2, another protective measure by the cross girders is obtained, through which the upper girders 19 and 20 become the lower girders 17 and 18. It is combined. The air bleeding valve 25 is arranged in the outlet pipe 10, and in this embodiment, the supply of the fuel gas re-released from the container 3 to the engine 12 is controlled according to the operating state of the engine 12. The air bleeding valve 25 is an electronically controlled valve in this embodiment.

The container 3 is attached to the fuel tank 2 by elastic fixing means 22 in the form of two belts. For this purpose, the fixing means 22 is itself attached to a clip 21 arranged in the fuel tank 2. On the lower surface 8 of the fuel tank 2, the supply conduit 9 projects from the fuel tank 2 and continues to extend to the container 3. A lead-out pipe 10 comes out of the container, and fuel gas is supplied to the engine 12 via the lead-out pipe 10. In order to control and control this supply, an air bleeding valve 25 is arranged in the middle of the outlet pipe 10. A separate drainage conduit is not provided in this embodiment.

An air supply / degassing device 11 is arranged on one end surface of the container 3, and air is sucked into a fuel gas storage device arranged in the container 3 via the air supply / degassing device 11. It is possible to assist the operation of the storage device, especially the re-emission unit. Further, for example, when an excessively large amount of fuel gas is released in the hibernation state of the motorcycle 1 and the engine 12 cannot consume the fuel gas, the fuel gas is discharged from the container 3 via the air supply / degassing device 11. It may leak. That is, the illustrated air supply / degassing device 11 also assumes the role of a discharge conduit. Alternatively, the air supply / degassing device 11 may be realized by one individual device or a plurality of devices.

FIG. 7 shows a schematic view of the fuel tank 2 and a supply conduit 32 that is at least partially located within the fuel tank 2 and is tightly coupled to the supply conduit 9. In this case, the joint portion between the supply conduit 9 and the supply conduit 32 may be arranged inside or outside the fuel tank 2. The supply conduit 32 reaches the tank lid 29 arranged on the upper surface of the fuel tank 2. Through the opening of the tank lid 29 (not shown in this drawing), the fuel evaporated in the fuel tank 2 can flow into the supply conduit 32 and from there further into the supply conduit 9, in this case. The gas is then stored by a storage device located in the container 3. The pipe 35 shown in this drawing is a tank overflow portion capable of leaking an extremely large amount of fuel contained in the tank.

In FIG. 7, the cylindrical bulging portion 33 on the lower surface 8 of the fuel tank 2 is also well recognized. In this embodiment, the container 3 is attached to a cylindrical bulge 33. The container 3 is ideally protected based on the geometrical configuration of the bottom surface 8 of the fuel tank.

FIG. 8 schematically shows a mounting portion of the container 3 on the lower surface 8 of the fuel tank 2. Here, an elastic belt 22 is attached to a clip 21 formed or attached to the tank 2.

1 Motorcycle 2 Fuel tank 3 Container 4 1st end area 5 2nd end area 6 Pivot joint 7 Frame 8 Bottom surface of fuel tank 9 Supply conduit leading to container 10 Derivation pipe from container 11 Air supply / degassing Equipment 12 Internal engine 13 Steering 14 Saddle 15 Left side member 16 Right side member 17 Left side member lower girder 18 Left side member upper girder 19 Right side member lower girder 20 Right side Upper girder of side member 21 Clip 22 Elastic fixing means 23 Front of fuel tank 24 Cooler 25 Air bleeding valve 26 Fuel conduit 27 Fixing means 28 First flange 29 Tank lid 30 Fuel supply section 31 Second flange 32 Supply conduit 33 Swelling part 34 Fuel filter 35 Tank overflow part L Longitudinal direction of motorcycle l Longitudinal direction of container A Axis line S Horizontal extension length of fuel tank E Vertical surface H Horizontal plane

Claims (24)

With an internal combustion engine
With the frame
A fuel tank for storing the fuel to be consumed by the internal combustion engine, and
A container connected to the internal combustion engine and the fuel tank,
The container is a motorcycle, which is formed to store fuel evaporated from the fuel tank.
In a motorcycle, the container is at least partially obscured by the fuel tank in the position of use.
The fuel tank (2) is rotatably supported between the maintenance position and the use position with respect to the frame (7) .
The container (3) is attached to the lower surface (8) and / or the front surface (23) of the fuel tank (2) in the fuel tank (2), and is rotatable together with the fuel tank (2).
A motorcycle that features that. The swivel support of the fuel tank (2) is made in the first half of the fuel tank (2), and in the other half of the fuel tank (2), the container (3) is the fuel. It is attached to the tank (2), motorcycles according to claim 1. The swivel support of the fuel tank (2) is made in the first end region (4) of the fuel tank (2) and is the opposite of the first end region of the fuel tank (2). The motorcycle according to claim 1 or 2 , wherein the container (3) is attached to the fuel tank (2) in a second end region (5) located on the side. The fuel tank (2) is connected to the container (3) via a supply conduit (9), and the container (3) is of the fuel tank (2) with respect to the supply conduit (9). 1. The fuel tank (2) is attached to the fuel tank (2) at a position where the inflow of liquid fuel into the container (3) is prevented when the fuel tank (2) turns to the maintenance position. The motorcycle according to any one of items 1 to 3. The motorcycle according to any one of claims 1 to 4 , wherein the fuel tank (2) is supported by the motorcycle (1) so as to be rotatable via a pivot joint (6). The motorcycle according to claim 5, wherein the fuel tank (2) is supported by the motorcycle (1) so as to be rotatable via a pivot joint (6) formed as a hinge. Any one of claims 1 to 6, wherein the fuel tank (2) is rotatably supported around an axis (A) arranged perpendicular to the longitudinal direction (L) of the motorcycle. The listed motorcycle. The motorcycle according to any one of claims 1 to 7, wherein the fuel tank (2) is rotatably supported by the frame (7). It said container (3) is connected to the supply conduit (9) and guide extraction pipe (10), the fuel evaporated in the fuel tank (2) in via the feed conduit (9) Guided to the container (3), the fuel is guided from the container (3) to the internal combustion engine (12) via the outlet pipe (10) while the motorcycle is in operation, and the fuel is guided to the internal combustion engine (12). The motorcycle according to any one of claims 1 to 8, wherein the outlet pipe (10) is at least partially attached to the fuel tank (2). The motorcycle according to claim 9, wherein the entire emission system is attached to the fuel tank (2). The motorcycle (1) has a steering (13), and the fuel tank (2) is rotatably supported on the side of the fuel tank (2) far from the steering (13). The motorcycle according to any one of items 1 to 10. The motorcycle (1) has a saddle (14) connected to the fuel tank (2), and the fuel tank (2) is rotatably supported in the area of the saddle (14). , The motorcycle according to any one of claims 1 to 11. The motorcycle (1) has a frame (7), and the frame (7) has side members (15, 16) on the left side and the right side when viewed in the traveling direction, and these sides. The motorcycle according to any one of claims 1 to 12, wherein the container (3) is arranged between the square members. Said frame (7) is a double tube frame are made form, each said side member (15, 16) is a upper digit (18, 20) and Shitaketa (17, 19) The container (3) is substantially arranged between the upper girder (18, 20) and the lower girder (17, 19) at the used position of the fuel tank (2). The motorcycle according to claim 13. The frame (7) is formed as a lattice tube frame, and each of the side members (15, 16) has an upper girder (18, 20) and a lower girder (17, 19). Claim that the container (3) is substantially located between the upper girder (18, 20) and the lower girder (17, 19) at the use position of the fuel tank (2). 13. The motorcycle described. The motorcycle according to any one of claims 1 to 15 , wherein the container (3) is formed in a substantially cylindrical shape. The motorcycle according to any one of claims 1 to 16 , wherein the container (3) has a longitudinal direction (l) arranged perpendicular to the longitudinal direction (L) of the motorcycle (1). The container (3) has an extended length of the fuel tank (2) in a mounted state in which the longitudinal direction (l) of the container (3) is arranged perpendicular to the longitudinal direction (L) of the motorcycle. It has a extending length of 20% to 90 % of (5), where the extending length is the length in the width direction of the motorcycle , any of claims 1 to 17 . The motorcycle described in item 1. The container (3) has an extended length of the fuel tank (2) in a mounted state in which the longitudinal direction (l) of the container (3) is arranged perpendicular to the longitudinal direction (L) of the motorcycle. It has a extending length of 30% to 60% of (5), where the extending length is the length in the width direction of the motorcycle, any of claims 1 to 17. The motorcycle described in item 1. Said container (3) is at least partly in said use position, said fuel tank (2) is arranged above the lower end portion of the motorcycle according to any one of claims 1 to 19. The motorcycle according to any one of claims 1 to 19, wherein the container (3) is generally arranged above the lower end portion of the fuel tank (2) at the used position. In the container (3) is the use position, at least in part when viewed from the side, is located behind the vertical plane of the virtual (E) in the front end portion of the fuel tank (2), claim 1 The motorcycle according to any one of up to 21. Claims 1 to 21 wherein the container (3) is arranged in the used position, when viewed from the side, entirely behind a virtual vertical plane (E) at the front end of the fuel tank (2). The motorcycle described in any one of the items up to. Any one of claims 1 to 23 , wherein the container (3) is attached to the fuel tank (2) via a metal clip (21) and / or an elastic fixing means (22). The listed motorcycle.

Images